Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . ecies—helpless grubs are are carefully tendedand {&(\, because absolutelyunable to help themselves,are periodically cleaned andmoved about from place toplace in the nest, that theymay have the proper degreeof warmth and dryness ormoisture, and after about sixweeks of this coddling theyare full grown. Then theyeither spin an oval cocoon,in which they change topupae, or change directlywithout forming such a cov-ering. The cocoons are caredfor as tenderly as were
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . ecies—helpless grubs are are carefully tendedand {&(\, because absolutelyunable to help themselves,are periodically cleaned andmoved about from place toplace in the nest, that theymay have the proper degreeof warmth and dryness ormoisture, and after about sixweeks of this coddling theyare full grown. Then theyeither spin an oval cocoon,in which they change topupae, or change directlywithout forming such a cov-ering. The cocoons are caredfor as tenderly as were thelarvae themselves, and theseare what is usually known as ants eggs. They may befound at midsummer, or thereafter, in almost any colony of ants,and usually in the upper chambers of the nest, where they get afull supply of warmth from the sun. The adults hatch from thesecocoons late in summer, and at once take part in the work of thenest, so far as they are workers. Of the latter there may betwo *brms, known as worker minors, or small workers, and worker majors, or large worker-, each with different Cremastogaster Inieolata. — a, h, largeworker ; c, its head ; d, female ; e, its wing ;/, small worker. Family Formicidcr. THE IXSECT WORLD. 393 There are also two kinds of winged forms, males and females,both larger than the workers, and the females considerably largerthan the males. All the insects work their way down to thelower levels or inmost galleries of the nest on the approach ofcold weather, and hibernate in the adult stage in a dormant con-dition. In spring, with the approach of warm weather, activityis resumed, and, usually some time during the early part of theseason, on a particularly bright, warm day, the newly de\elopedmales and females leave their old home and swarm. By thisis meant that they leave the nest in which they were hatched andfly about for a short time. They mate soon after, and are thenready to start colonies of their own. None of them ever
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1906
